Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Sharp Shalini
 2. Date of Event Requiring Statement (Month/Day/Year)
10/01/2006		 3. Issuer Name and Ticker or Trading Symbol
ANTIGENICS INC /DE/ [AGEN]
(Last)
(First)
(Middle)
C/O ANTIGENICS INC., 630 FIFTH AVE., SUITE 2100		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
CFO
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10111		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 2,500 (1)
D
 
Common Stock 9,579
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option, right to buy 08/05/2004(2) 08/05/2013 Common Stock 20,000 $ 12.45 D  
Stock Option, right to buy 02/18/2005(3) 02/18/2014 Common Stock 6,800 $ 10.36 D  
Stock Option, right to buy 01/10/2006(4) 01/10/2015 Common Stock 20,000 $ 9.43 D  
Stock Option, right to buy 03/22/2007(5) 03/22/2016 Common Stock 20,000 $ 5.13 D  
Stock Option, right to buy 09/13/2007(6) 09/13/2016 Common Stock 60,000 $ 1.74 D  
Stock Option, right to buy 09/15/2007(7) 09/15/2016 Common Stock 22,267 $ 1.63 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Sharp Shalini
C/O ANTIGENICS INC.
630 FIFTH AVE., SUITE 2100
NEW YORK, NY 10111		       CFO  

Signatures

Christine M. Klaskin, by Power of Attorney 10/05/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Shares vest in two installments, 33% on 3/22/2007 and 67% on 3/22/2008.
(2) Options vest in five equal annual installments beginning 08/05/2004.
(3) Options vest in four equal annual installments beginning 02/18/2005.
(4) Options vest in four equal annual installments beginning 1/10/2006.
(5) Options vest in three equal annual installments beginning 3/22/2007.
(6) Options vest in four equal annual installments beginning 9/13/2007.
(7) Options vest in two installments, 33% on 9/15/2007 and 67% on 9/15/2008.

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